Hochvorschubfräsen vs konventionelles Fräsen. Erhalten Sie sofortige Pitch Dia (mm), Outside Dia (mm), Root Dia (mm), Base Dia (mm) für Ihre Zerspanungsparameter.
Even with high-end tooling from Nachi and Walter Tools, things go wrong. Here are the most common Zahnradparameter-bezogenen Probleme, die unser Technikteam sieht, und wie man sie behebt.
Diagnose: Ihre surface speed is likely too high. Even Nachi AlTiN-coated carbide can't outrun excessive heat generation. Check that your Zahnradparameter zur tatsächlichen Materialhärte passt — ein Wechsel von HRC 28 auf HRC 32 bei 4140 ändert alles.
Lösung: Reduce SFM by 15-20%. Verify coolant concentration with a Mahr refractometer (target 8-10% for steel).
Diagnose: Ihre Zahnradparameter might be fine for straight cuts, but corner engagement increases dramatically. Walter Tools application engineers call this the "corner trap" — the tool sees 180° of engagement in a 90° internal corner.
Lösung: Add a finish pass at 0.1mm radial depth with a separate finishing tool. Program the DMG Mori to reduce feed rate to 50% in corners.
Diagnose: You're applying Nachi Zahnradparameter values to Walter Tools tools — oder vice versa. Each manufacturer's carbide substrate and Beschichtung system has a different sweet spot.
Lösung: Laden Sie den spezifischen Zahnradparameter chart for your exact tool from the manufacturer's website. Nachi CoroPlus and Walter Tools NOVO both offer free digital tools.
Spur gear dimensions are determined by the module (metric) or diametral pitch (imperial) and the number of teeth. This calculator uses standard involute gear geometry for 20 deg pressure angle -- the most common in industrial gearing.
Module (m) is metric: m = pitch diameter / number of teeth (mm). DP is imperial: DP = number of teeth / pitch diameter (inches). Conversion: module = 25.4 / DP. A DP 8 gear ≈ module 3.175. Metric gears are specified by module; imperial by DP.
20 deg is the modern standard (ISO 53, AGMA 201.02). Older machinery sometimes uses 14.5 deg (older AGMA standard). 25 deg is used for high-strength gears. The pressure angle affects tooth thickness, contact ratio, and the minimum number of teeth before undercutting.
Yes, with an involute gear cutter (form-milling) or by generating the profile via CNC hobbing cycles. Form-milling uses a cutter shaped like the tooth space. For one-off gears, 3+2 axis milling with a ball end mill can approximate the involute profile.
Enter the module and number of teeth. The calculator gives all major spur gear dimensions per ISO 53 (20 deg pressure angle). Use these values for gear blank turning, gear cutting setup, and over-pin inspection measurements.
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